Anzac parade to start in Adelaide

CLEAR blue skies will greet marchers and spectators stretching from Adelaide's War Memorial to the Cross of Sacrifice for the city's Anzac Day parade.

Thousands are expected to line the route for the march that follows the dawn service.

Among those taking part will be defence scientists who have been awarded the Australian Operational Service Medal and who will march under the defence civilians banner for the first time.

Chief defence scientist Alex Zelinsky says those taking part have earned the right to be included in the ceremony, having provided exceptional support to Australian troops on overseas missions.

Acting Premier John Rau and Opposition Leader Steven Marshall have urged South Australians to attend the parade.

"As we honour our war dead and past servicemen and women, we also remember and pay tribute to the brave Australian Defence Force men and women who are currently serving overseas," Mr Marshall said.

"Today is an important day to recognise and appreciate the enormous contribution of all soldiers who fought for Australia, many of whom paid the ultimate price to secure the future of our great nation."